Press



July 3, 1928. 1,675,444

F. BLANDO PRESS Filed May 10, 1927 2 Sheets-Sheet 1 July 3, 1928. 1,675,444

F. BLANDO PRESS Filed May 10, 1927 2 Sheets-Sheet Patented July 3, 1928.

' Qumran:

FRANK BLAnno, or new YORK, N. y.

PRESS.

1 Application filed May- 10,

This invention relates generally to improveinents 1n presses, but specifically has to do with a lever press for forming artificial flower leaves- One of the essential objects of the invention is to provide a device of the abovementioned character, operable by the pressing oi toot-treadles, one operation of one of said treadles resulting in the working-stroke and simultaneously therewith the setting of the other of said treadles in. a position to effect the raising of a presser bar, and 0011- junctively place in. operative position the treadle eflectingthe initial working-stroke.

The invention is further featured by the provision of oscillatorylevers, in the form olf walking beams, operatively connected with each other, but individually joined to the foot-operating means aforesaid.

As: will presently appear the device includes a presscr bar adapted to reciprocate vertically in certain guiding means, and un der the control of foot-treadles, the down ward stroke of said presser-bar resulting in the pressure, of certain dies used in the manufacture of artificial flower; leaves. This particular operation being called the working-stroke, obviously a greater amount ofenergy is required, or should be requ1red,.

and to this end the pivotal disposition of certain walking beams has been considered in order to secure a tremendous leverage distributed over a pair of levers.

Since the return of the presser bar to its normal position does not require an undue amount of force, advantage is taken of this fact by splitting the work of one of the foot-treadles to the end that said pressure bar may be elevated to normal position simultaneously with the elevation of the other toot-treadle to working position.

Other features of the invention will be come apparent as the description proceeds, reference at this time being had to the accompanying drawings, wherein like characters of reference denote similar parts throughout the several views.

In said drawings:

Fig. 1 is a side elevation of my improved press, the parts assuming their respective 1922 Serial Nor. was.

positions during the working-stroke ot' the presser bar.

Fig. dis a plan view thereof,

Fig. 3 is a -tront elevation of Fig. 1, certarn portions beingbroken away, and

Fig. 4 isa rear elevation thereof.

The device, though extremely efficient in operation, yet it. comprises relatively few parts, simple in construction, and a glance atv Fig. 1, discloses a. standard 75., a presser bar 6, a pair of levers or walking beams 7 and 8, toot treadles 9. and 10, cables 11 and 12: connecting respective treadles to said levers, and supporting means 13. for the device.

Said standard 5* embodies a base flange 14 suitably apertured at desired intervals. for

the receptionof fastening devices 15 for firmly anchoring said standard to the sup porting means 13. Thestandard is further featured with lateral arms 16 and 17, each being provided with apertured bosses 18 and 19 respectively, at their upper ends, said bosses being preferably slitted to pivotally receive said. levers$7and 8. The presser bar 6,, is squared at the lower portion, as indicated; at 20, while the upper portion may be flattened at 21. for inter-fitting engagement with the t'orked end? of said lever 7,

the intermediate portion however being slidably engaged by the apertured boss 22 at the outer end of an extension 23 of said standard 5.

As clearly shown in Figs. 1 and 2 of the drawings, lever 8 is provided with a forked end 8 for the pivotal reception of the other end of lever 7, the outer end of said lever 8 being apertured for securing one end of cable 12 attached to foot-treadle 9.

The other foot-treadle 10 is also operatively connected to the leverage just described through the mediumof cable 11 havingits upper end secured to an apertured lug 7" of said lever 7 i In order to produce an elficient pressure, featured by compactness of arrangement, I provide two sheaves 24 and. 25, rotatably mountedon shafts 26 and 27 journalled in bracket 28, the upper end of said bracket being secured to the bottom of the top of press in of sald lever is projected an appreciable dising down said presser bar pivotal point of said lever forked; end 7* and that the contudinally apertured, as shown at 5 for the reception. of said cable or flexible elementll,

the course of the aperture being, of course,

continued through the top of the supporttion and the scope of the appended claims.

ing means, V ,3 Y i a The position of the component parts of the stroke. That is, the foot-treadle 9 has been depressed and the pull exertedonthe leveragevia the cable 12 has shifted said leverage from thepositionindicated by broken lines to the position shown in full lines, thus puslr 6 to the dies to beengagedf However, at the same time a pull has been exerted on said cable or flexible element'll by the rise of the leverage, said pull being communicatedto the foot t'readle 10 and elevatingthe same to .theposition indicated in Figi'l. .From the foreit should be apparent thatthe initial pressure on treadle 9 not only operated the presser bar 6, but also brought to Operative positiontheother treadle 10 and further, a depressionof the latter'treadle positions the leverage as indicated by the broken lines and thus elevating said presser bar. Alternate pressure, therefore, on both treadles operates the presser bar and then resets it to inoperative position.

" It should be carefully observed that the 7 is positioned adjacent the nection of said cable-llvtherewith is at a pointsomewhat remote from the pivotal connection, thus creatmgfla decided mechanical advantage. 'This same general arrangement 18 true with respect'to lever 8, but here the mechanical advantage is, greater since rear Fig. 1 is at the end ofthe working .tance from the pivotal connection of the same. Thus, a pull on cable 12 is not only increased in power by the 1 mechanical advantage of the lever. 8 but also by the me- .chanical advantage of lever 7.

While the present is a disclosure of the invention in its preferred form, it should be understood .that the same is susceptible of modification within the spirit of the invensaid standard and pivotally connected to each other, a presser bar pivoted to the shorter of said levers, a flexible member connected to said levers adjacent their pivotal point, a second flexible member connected'to the other of said levers and means for alternately exerting a pull on said fiexiblemembers to lower and raise said presser bar.

3. In a press, standard, levers pivoted to said standard and pivotally connected to each other, a presser bar pivoted to one of said levers and slidably engaging said standard, a flexible member connected to said levers adjacent theirpivotal point, a second flexible member connected to the" other of said levers, means for alternately operating said flexible'members'to lower and raise said 'presser bar and rotative elements guiding said flexible members and disposed interme diate their ends.

In testimony whereof I aflix my signature.

FRANK BL Nno. 

